Do the drivers need to turn them on, or is there just a massive issue with them I have been on 8 different ones none of them work, but they don't have any plugs either? Anyone know

You could log this via the GNE customer services team, who will be able to process via the relevant channels?

I know this thread is about USB's, and credit to GNE 6353 USB's weren't working, they were working the other day same with 6353.

However E400's all they do is Squeak and its a really awful sound, I would personally rather a bus rattle then squeak.